Housing for a support shoe in a trench falsework

ABSTRACT

PCT No. PCT/DE95/01039 Sec. 371 Date May 7, 1997 Sec. 102(e) Date May 7, 1997 PCT Filed Aug. 4, 1995 PCT Pub. No. WO96/08607 PCT Pub. Date Mar. 21, 1996The invention concerns a housing (18), in a trench falsework panel, designed to hold the support shoe for a strut (17) so that the strut is secured in place at a spring joint. The housing permits the support shoe, which is directly associated with the strut, to be mounted simply in place by virtue of the fact that the longitudinal ends of the housing have a collar (21) projecting out from the surface of the panel, at a certain distance from the strut, with a bore running at right angles to the longitudinal axis of the housing, and the support shoe has a collar, matching that on the housing, with a bore, aligned with that in the housing collar, into which a bolt (25) can be inserted to hold the shoe in place.

The invention relates to the housing in a trench lining plate forreceiving the support shoe for a brace, which is intended to beresiliently fastened, of a pair of lining plates of a trench liningdevice (lining box), which are intended to be maintained at a distanceby means of the brace, wherein the brace preferably is intended to befastened in a receptacle of the support shoe with the aid of a braceholding bolt which is intended to be pushed through bores alignedtransversely in respect to the longitudinal direction of the housing.

A support shoe housing of this type can be derived from DE 42 09 675 C1.The known housing, which there is embodied as a box-shaped pocket of thesupport shoe, does not project past the exterior surface of the liningplate which is to face the interior of the trench. Bolts or screws,which are situated inside the lining plate parallel with its exteriorsurfaces, are therefore required for fastening the support shoe andlastly the brace in the lining plate. For this reason recesses of thesheet metal cover plates of the lining plate are therefore required atat least two locations outside of the support shoe for the access to the"inner" bolts or screws. The combination of two tasks, namely fixing thesupport shoe in place and the pivotability in a bolt, however merely hasthe result that this bolt can only be mounted or removed through anopening in the body of the lining plate, for example a recess of a coversurface.

As the means for resiliently hinged fastening of the brace with the aidof the support shoe in a trench lining plate, it is proposed in the notpreviously published German Patent Application P 43 41 626.8 to seat thebrace receivers respectively on a pair of helical pressure springs whichare positioned next to each other on both sides of the brace holdingbolt. Fastening of the support shoe in the lining plate takes place withthe aid of a bolt which simultaneously constitutes the pivot shaft ofthe support shoe.

It is a first object of the invention to create a support housingarrangement which permits the creation of a support shoe with theresiliently hinged fastening, in particular in accordance with P 43 41626.8 which, when the arrangement of the hinge and spring elements isseated within the body of the respective lining plate, permits thefastening of the support shoe as well as of the brace within the body ofthe plate.

The attainment in accordance with the invention of the first objectconsists in that the housing of the type mentioned at the outset hashousing collars, which project at a radial distance on both sides of thebrace holding bolt past the adjoining exterior surface of the liningplate intended to be facing the inside of the trench, and have at leastone continuous housing bore, and that the support shoe has shoe collarscorresponding to the housing collars and essentially extending paralleltherewith after assembly, with respectively one continuous shoe borealigned with a housing bore for inserting a shoe holding bolt.

A characteristic preferred by the invention consists in that the twocollars or collar layers (with the support shoe housing extendinglongitudinally in the transverse direction in respect to the braceholding bolt) are only provided in the area in front of and up to theends of the longitudinal sides of the housing--and, if required,transversely in respect to it at the longitudinal ends--, because in thecenter area the collars would hamper the assembly or disassembly of thebrace holding bolt. In other words it can be stated that the supportshoe housing and the support shoe each have a collar extending past theexterior surface, which has recesses in the center area of thelongitudinal sides of the housing at the places where the brace holdingbolt must be pulled or pushed during assembly or disassembly. The twocollars (of the support shoe and the housing) project two-dimensionallyvertically (or obliquely) close to each other from the exterior surface,so that they are intended to be coupled by the shoe holding bolts liketwo collar layers along two straight lines.

The two or more shoe holding bolts positioned in accordance with theinvention for fastening the support shoe in the support shoe housing areboth located outside of the body of the lining plate over the adjoiningexterior surface. They are arranged in such a way that after insertionof the support shoe into the support shoe housing they can be set andsecured with a few manipulations. Assembly and disassembly of the shoeholding bolts can take place in the same way as that of the braceholding bolts. Preferably the three bolts of each brace holder areessentially disposed in one plane above the exterior surface of thelining plate. Thus, assembly and removing is made easier by theinvention, without the brace holder projecting from the surface whichfaces the inside of the trench more than with known holders, because theshoe holding bolts and their seating (i.e. the drilled collar layersconnected by bolts) do not project further toward the inside of thetrench than the brace receivers with the associated shoe holding bolts.

In accordance with the invention it can further be advantageous todesign the longitudinal ends of the walls of the support shoe housingsnot vertically, but obliquely in respect to the adjoining exteriorsurface of the lining place such, that the housing in its entirety isrepresented to be conically opening toward the exterior. By means ofthis it is achieved on the one hand, that dirt can fall out or caneasily be rinsed out with water and, on the other hand, assembly of thesupport shoe, which is preferably approximately cube-shaped in itsexterior--except for the collar recess--, in the housing is made easier.In order to prevent water from collecting in the support shoe housing,for example if the lining plate is stored outside, a bore through whichwater can run out is advantageously provided in the bottom of thehousing, i.e. in the cover surface located opposite the receiving side.

If in an installed lining box the excavator is worked forward in thetrench, it can reach with its bucket underneath the braces which closestadjoin the advance. In the process the bucket of the excavator rapidlyreaches the area at the trench point ahead of the advancing end of thelining box. It is often not possible to prevent the settling of the dirtfrom the sides of the trench in this unlined area. Then cracks oftenoccur in the streets or houses.

Accordingly, it is a further object of the invention to create a liningbox and with it a lining plate which allows the matching of the advanceend of the supported areas of the trench and the maximum advance whichcan be achieved by means of the excavator to each other in such a waythat no dirt can settle from the sides of the trench when the excavatorbucket has respectively reached the working end. The attainment inaccordance with the invention of this further object lies in that thesupport shoe housing is approximately arranged ahead of the advancingend of the lining box in the direction toward the plate surface by theamount of the distance over which an excavator bucket during digging canreach underneath the brace which adjoins the advancing end.

By means of this a support shoe arrangement of the lining plate iscreated wherein the support shoes or other resiliently linked fasteningsof the braces are not fastened directly on the plate edge--this appliesin particular in the case wherein two pairs of braces located above eachother are provided in the vicinity of the plates edges--but further inthe direction toward the plate center. The excavator, which must reachbelow the lower brace with its bucket, wherein the radius of action ofthe excavator boom is limited by the brace, then cannot reach theunlined area into which dirt could settle from the sides of the trench.By means of the displacement in accordance with the invention of thebrace fastening more toward the center of the plates, settling of thedirt and thus the formation of cracks in the road or in adjoining housescan be prevented in the simplest way.

In accordance with a realization of the inventor, a lining plate of thetype described becomes particularly rigid if it has a circumferentialhollow profile frame. The hollow profile can have a rectangular crosssection at the top edge and the lateral edges, a triangular profile ismostly provided at the underside, if the plate is intended to have acutting edge there for being driven forward through the ground. Inaccordance with a third attainment in accordance with the invention ofthe object, the support shoe housings are not installed in, but next tothe hollow profiles on the lining plate in order not to weaken thestability provided by means of the circumferential hollow profile frame.Each housing can be directly attached, in particular welded, to thehollow profile, for example in a recess of the plate body, however, itis also possible to provide intermediate elements between the exteriorsurface of the housing and the "inner" surface of the hollow profilefacing the plate body.

However, as solid as possible a connection, in particular by directcontact between the materials, between the inner surface of the hollowprofile and the support shoe housing is advantageous, so that forcesexerted on the support shoe housing during its use cannot lead to adeflection of the housing relative to the surface of the lining plate.For this reason it can be advantageous to attach the support shoehousing in a corner of the frame, for example in the corner between thehollow profile of the upper edge and that of the lateral edge, andrespectively on the inside of the frame.

In accordance with a preferred further embodiment of each one of theabove attainments in accordance with the invention of the objects, anadditional rigidity results if brackets attached, in particular welded,to the support shoe housing and extending laterally over the adjoininghollow profile of the frame and welded to it, are provided for absorbingtorsion moments possibly exerted on a support shoe housing. Suchbrackets can extend in the longitudinal direction as well as thetransverse direction of the support shoe housing over the respectivelyadjoining hollow profile. Preferably the brackets or sheet metal platesprovided vertically or obliquely in respect to the exterior platesurface at the longitudinal ends of the support shoe housing extend overthe adjoining hollow profile. Alternatively it is possible for thelongitudinal sides of the support shoe housing to project past itslongitudinal end and to be welded to the adjoining hollow profile. Inthis case it is within the scope of the invention to provide one orseveral brackets on each of the sides or end faces of the support shoehousing and to weld them together with the adjoining hollow profile.

Under actual working conditions there is often the desire to connectplates standing next to each other in the trench in such a way with eachother that the braces in the connection area can be partially or totallyremoved and more space is made for excavating work or the insertion oflong pipes. In accordance with a further development of the invention,the brackets projecting away from the support shoe housings and weldedto the hollow profiles are used as connecting points for fasteninglining plates standing next to each other in the trench. For thispurpose the brackets are provided with bores, for example, which areintended to be connected via connecting elements with the respectivebore or bracket of the adjoining plate. The connecting elements shouldbe releasably connected with the brackets and should be long enough thatthey prevent the interfering movement of the plates against each otherin the connecting area. In further accordance with the invention thebrackets can be used in a similar manner for connecting built-up orraised elements, i.e. of additional plates to be placed on top ofexisting plates. Basically the raised elements can be embodied similarto the described lining plates. However, the cutting edge provided onthe lower edge of the base plates is not necessary.

In accordance with the invention it is preferably intended, differentfrom DE 41 11 266 C1, for example, to avoid stabilizing the support shoehousing of the support shoe in the hollow profile frame of the liningplate, because the rigidity of the frame itself is impaired by this.Furthermore, in accordance with the invention the design in accordancewith P 43 41 626.8, wherein the hinge bolt of the support shoe issimultaneously employed for fixing the support shoe in place in thelining plate, is further developed; in place of the one bolt, threebolts are provided in the design in accordance with the invention. Thehinged bolt remains unchanged here, but it is integrated in the per setransportable preassembled support shoe itself. The two other bolts,which in accordance with the invention are added, are mounted with theaid of the collars and their bores outside of the plate body. Thereforethe assembly or disassembly of a support shoe does not require weakeningof the lining plate or even the hollow profile frame. The tasks assumedby one hinged bolt in accordance with P 43 41 626.8 are distributed totwo bolt types| Furthermore, the stabilizing effect of the hollowprofile by lateral welding of the housing and, if desired, by thebrackets welded on top is employed without hampering the stabilizingeffect of the hollow profile on the entire plate. With the design inaccordance with the invention, the lining plate has no recesses orbuilt-ins which impair the moment of resistance of the plate.

When used in the trench, a lining plate is lifted for further placementand again driven into the ground and/or pulled along in the longitudinaldirection of the trench. In both cases the crane or the like requiresattachment points on the plate. In accordance with a further developmentof the invention the brackets attached to the support shoe housings andwelded together with the adjoining hollow profiles are connected inpairs with each other to one or several housings by bolts or other rods,which can be welded or screwed to the brackets. The eyes created in thisway represent ideal attachment points for a crane hook, a cable or thelike.

Details of the invention are explained by means of the schematicrepresentation of exemplary embodiments. Shown are in:

FIG. 1, a view of the inside (side facing inside the trench) of a liningplate;

FIG. 2, a lining box of two lining plates in FIG. 1, approximately alongthe section II--II in FIG. 1;

FIG. 3, an enlarged representation of the section through a shoe supporthousing with support shoe in FIG. 2; and

FIG. 4, a section along the line IV--IV in FIG. 3.

The lining plate represented in FIGS. 1 and 2, identified as a whole by1, consists of two rectangular sheet metal covers 2 and 3 with profiledsheet metal elements 4 enclosed between them and a circumferentialhollow profile frame 5 welded to the cover surfaces 2 and 3, whichconsists of respectively one hollow profile 7, 8 and 9 uninterruptedlyextending from the frame corner 6 to the frame corner 6. The ends of thehollow profiles 7 to 9 meeting at the frame corners 6 are weldedtogether in such a way that the rectangular frame construction becomesone piece, so to speak. The hollow profiles 7 to 9 can be longitudinallywelded or seamlessly welded or drawn. Preferably these are not only U-or C-profiles, but hollow profiles closed in a tube-like manner.

In detail the frame structure 5 represented consists of a pressure crossbeam 7 particularly stabilized against flexural buckling at the upperplate edge 10, of respectively one vertical cross beam 8 stabilizedagainst forces in the vertical longitudinal direction at the plate sides11, and a pointed hollow profile 9 having a cutting edge 12 on the lowerplate edge 13. While the pressure cross beam 7 and the vertical crossbeam 8 are intended to have a rectangular cross section, the pointedhollow profile 9 has an approximately cross section on the lower edge 13in the form of a right triangle, whose one cathetus 14 lies in the planeof the rear wall 3, whose other cathetus 15 lies vertically in respectto the plane of the cover surface 2, 3 and whose hypotenuse 16 isintended to face the interior of the trench.

Support shoe housings 18 provided for placing and fastening the braces17 in place are inserted with the opening into the lining plate at thesheet metal cover 2, which is on the inside during lining, andpreferably directly adjoining the hollow profiles 7 to 9, without therebeing a need for any weakening, in particular recesses, in the hollowprofiles 7 to 9. If for any reason the hollow profiles 7 to 9 are notprovided, it can still be advantageous to arrange the support housingshoes 18 in the plate surface at a suitable distance from the verticalplate edges 11. In this case the distance should preferably besufficiently great so that an excavator bucket can reach underneath thebrace at the advance end without dirt settling from the sides of thetrench. Each support shoe housing 18 receives a support shoe 20 which isintended to be connected with an end 19 of a brace 17. The details inconnection with this will be represented more clearly in FIGS. 3 and 4.

In accordance with the invention the support shoe housing 18 has collars21 on its longitudinal ends, which project beyond the inner sheet metalcover 2 (oriented toward the interior of the trench if required). In thecenter of the length of the housing, i.e. in the center between thelongitudinal ends 22 of the housing 18, its lateral walls 23 only extendto the level of the inner sheet metal cover 2, so that a recess 24 ofthe collar 21 appears there. In the area of the collar 21 the lateralwalls 23 have continuous, aligned bores on both sides of the recess 24for inserting a bolt, the so-called shoe holding bolt 25.

The surfaces of the support shoe housing 18 at its longitudinal ends 22can be embodied to be vertical in respect to the sheet metal covers 2,3, however, in the way represented, also oblique or conically openedtoward the interior of the trench. The oblique shape of the end faces ofthe longitudinal ends 22 makes cleaning the housing 18 simpler. A drainhole 26 can be provided in the bottom of the housing 18, penetrating thesheet metal cover 3 there, which prevents the accumulation of water in ahorizontally lying plate.

A support shoe 20 is received in the support shoe housing 18. Part ofthe support shoe 20 are a receptacle 27 for inserting the brace 17; asupport plate 28 which rests vertically under the receptacle 27 on abearing 29 and is welded together with both the receptacle 27 and thebearing 29; pairs of springs 30; and collars 31 extending beyond thesupport plate 28 as well as the inner sheet metal cover 2, with boreswhich are aligned with the corresponding bores of the collars 21 of thehousing 18, so that the collars 21 and 31 can be connected with eachother with the aid of the shoe holding bolts 25. The support shoe 20 isimmovably fixed in the housing 18, if required, by the shoe holdingbolts 20. The support shoe 20 further has lateral walls 32, in which ashaft 33 is fastened, on which the bearing 29 rests, which is connectedwith the support plate 28, preferably by material to material contact. Asupport shoe 20 which is intended to be used in accordance with theinvention can therefore be preassembled as a whole and fixed in place inthe support shoe housing 18 with the aid of the two bolts 25. Once thatis accomplished, the brace 17 can be inserted with its longitudinal end19 into the receptacle 27 of the support shoe 20 and fixed in place bymeans of the so-called brace holding bolts 34. All bolts 25 and 34 aregenerally secured (for example with the aid of cotter pins).

Since all three bolts 25 and 34 are situated in the area outside of theplate 1, the bolts preferably are located in the same plane, assemblyand disassembly of the support shoe 20 and the brace 17 can take placemerely by inserting and securing or releasing the bolts 25 and 34.

In accordance with the invention, the support shoe housing 18 isdirectly welded to a profiled tube, or in a corner between two tubeprofiles for reasons of rigidity. A high torsion resistance of thesupport shoe housing 18 is already achieved by this. However, it mustalso be considered that in the course of forcing in or reversing alining box constituted of two lining plates 1 in accordance with FIG. 2,considerable transverse forces of different strength and directions acton the support shoe housing 18. For this reason the support shoeformerly was not integrated into the inner, relatively soft elements ofthe lining plate, but into the profile frame. Because of the attainmentof the object in accordance with the invention it is possible to leavethe rigidity of the profile frame unhindered but still to fix thesupport shoe housing 18 or the support shoe 20 in place in the liningplate 1 with the required rigidity.

In order to also overcome the largest torsional moments actuallyoccurring, which can act on the housing 18, it is furthermoreadvantageous to apply, preferably weld, extended brackets 35 and/or 36to the longitudinal ends 22 and/or lateral walls 23 of the support shoehousing 18. The extended brackets 35, 36 can also be embodied ascontinuations of the lateral faces 22 or 23 on which they are seated.The extended brackets 35 are attached, for example, to the end faces (atthe longitudinal ends 22 of the housing 18) which extend vertically oroblique in respect to the cover surface 3, 4. The extended brackets 36are constituted, for example, as continuations of the longitudinallateral walls 23 of the housing.

In actual use the extended brackets 35 and 36 can extend partially orcompletely over the adjoining hollow profiles 7 or 8. A support shoehousing 18 can basically also be provided in the corner between thehollow profiles 8 and 9. In any case, the lower edge of the extendedbrackets 35 and 36 should be welded to the adjoining sheet metal of thehollow profiles. By means of this even the strongest torsional momentsexerted on the housing 18 can be absorbed, if required, without thedeflection of the housing. If it is intended to use such a lining platenot only in box lining, but also in sliding rail lining, the lateraledge 11 of the plate is generally embodied as a rail, for example of aT-profile. In this case the extended brackets 35 should end at adistance from the T-rail profile.

In accordance with a further concept, the extended brackets 35 and 36are provided with at least one bore 37. It is then possible to use theextended brackets 35 for connection plates 1 lying next to each other inthe trench, using connecting elements, not shown. However, it is alsopossible to respectively draw a bolt 38 or the like through the bores 37and in this way to provide an attachment point for a crane hook, a cableor like pulling means, with whose aid the lining plate can be pulled upand/or along the trench.

As stated, it is often sufficient for the torsion-resistant connectionof the support shoe housing 18 to weld the housing 18 to therespectively adjoining hollow profiles 7, 8 of the frame 5. Inaccordance with FIG. 4, welding can be performed directly from thehousing wall 23 to the adjoining or connecting inner hollow profile wall39 by means of an essentially flat weld seam 40. However, it can also beadvantageous or necessary to insert in accordance with FIG. 3 a(preferably massive) intermediate element 43 between the oblique housingwall 41 (at the longitudinal end 22 of the housing 18) and the nearestlocated inner hollow profile wall 42 and to weld it together with theadjoining walls 41 and 42--again essentially flat--.

The housing in a trench lining plate for receiving the support shoe fora brace, which is intended to be resiliently fastened, permits asimplified assembly of the support shoe directly assigned to the brace,if the housing has a housing collar with a housing bore extendingvertically in respect to the longitudinal direction at the longitudinalends at a distance from the brace, which projects out of the surface ofthe plate, and if the support shoe has a shoe collar corresponding tothe housing collar, with a shoe bore aligned with the housing bore forthe insertion of a shoe holding bolt.

If draw rings (not represented) are movably welded to the upper hollowprofiles 7 in such a way that they project beyond the upper edge of thecross section when folded upward, and when during removal work using acrane four cables of even length are inserted into the draw rings of theone plate and over the bolts 38 of the housing 18 of the other plate ofthe lining box, the crane first pulls at the lower situated bolts 38 andat the draw rings only later, so that the one plate is first lifted.Because of the initial movement of the one plate in respect to theother, the mutual distance between the two plates is reduced as in aparallelogram. This has the result that the ground pressure against bothoutsides of the lining box is intended to be correspondingly reduced. Ifa lining box suspended from the described fastening means is lifted inthe course of removal work, jarring of the ground previously generatedby the jolt caused by pulling are avoided, and corresponding cracks inthe road surface or the adjoining houses do not occur. The applicationof crane attachment means at different heights of the two plates bymeans of this embodiment of the invention makes it possible to pull thelining box during removal work from the trench at a reduced distancebetween the two lining plates. In this connection it is important thatthe cables are attached at different heights; it is also possible to useattachment means other than the ones mentioned.

    ______________________________________    List of Reference Numerals    ______________________________________     1 =           Lining plate     2 =           Inner sheet metal cover     3 =           Outer sheet metal cover     4 =           Profiled sheet metal element     5 =           Rectangular frame construction     6 =           Frame corner     7 =           Pressure cross beam     8 =           Vertical cross beam     9 =           Pointed hollow profile    10 =           Upper plate edge    11 =           Lateral plate edge    12 =           Cutting edge    13 =           Lower plate edge    14, 15 =       Cathetus    16 =           Hypotenuse    17             Brace    18 =           Support shoe housing    19 =           Longitudinal end (17)    20 =           Support shoe    21 =           Collar (18)    22 =           Longitudinal end (18)    23 =           Lateral wall (18)    24 =           Recess (21)    25 =           Shoe holding bolt    26 =           Drain hole    27 =           Receptacle (19)    28 =           Support plate    29 =           Bearing    30 =           Pair of springs    31 =           Collar (20)    32 =           Lateral wall (20)    33 =           Shaft    34 =           Brace holding bolt    35, 36 =       Extended bracket    37 =           Bore    38 =           Bolt    39 =           Inner hollow profile wall    40 =           Weld seam (39)    41 =           Housing wall (22)    42 =           Inner hollow profile wall    43 =           Intermediate element    ______________________________________

I claim:
 1. A support shoe and housing assembly for use in a trenchlining device of the type including a pair of trench lining plates onopposite sides of a trench, each plate having an exterior surface facingthe interior of the trench and a support shoe in the plate for receivingand supporting a brace extending between the plates for maintaining theplates a predetermined distance apart, and including a brace holdingbolt for fastening the brace to the support shoe, said support shoe andhousing assembly comprising:a support shoe housing positioned in thelining plate and having longitudinal ends, said housing including abrace bore aligned transversely with respect to the longitudinaldirection of the housing for receiving the brace holding bolt; a pair ofhousing collars on the longitudinal ends of the housing, said housingcollars projecting a radial distance on both sides of the brace holdingbolt beyond adjoining exterior surface of the lining plate; at least onecontinuous housing bore within the housing collars; a support shoewithin said housing, said support shoe including means for resilientlyfastening the brace in the lining plate; a pair of shoe collarscorresponding to the housing collars and being positioned therein toextend substantially parallel with the housing collars; and at least onecontinuous shoe bore in alignment with said housing bore for receiving ashoe holding bolt therethrough.
 2. The shoe support and housing assemblyof claim 1, wherein said shoe bore and said brace bore are positionedwith respect to each other whereby the brace holding bolt and shoeholding bolt inserted therein lie parallel to each other with respect tothe exterior surface of the lining plate.
 3. The shoe support andhousing assembly of claim 1, wherein said shoe support housing includesa housing bottom and housing walls extending from the housing bottom tothe longitudinal ends of the housing, said housing walls beingpositioned to lie obliquely to the adjoining exterior surface of thelining plate whereby said housing is conically opened toward theexterior surface of the lining plate.
 4. The shoe support and housingassembly of claim 3, wherein said housing includes a drain hole in thehousing bottom.
 5. A trench lining assembly for supporting a bracewithin the interior of a trench, said assembly comprising:a pair oftrench lining plates, each plate having an exterior surface facing theinterior of the trench and including a hollow profile frame havinghollow profile elements; a support shoe housing being positioned in eachlining plate, said housing including longitudinal ends and a brace borealigned transversely with respect to the longitudinal direction of thehousing for receiving a brace holding bolt; a pair of housing collars onthe longitudinal ends of the housing, said housing collars projectingbeyond the exterior surface of the lining plate; at least one continuoushousing bore within the housing collars; a support shoe adapted to beresiliently fastened within said housing for receiving and supportingthe brace extending between the plates for maintaining the plates apredetermined distance apart; a pair of shoe collars corresponding tothe housing collars and being positioned therein to extend substantiallyparallel with the housing collars; and at least one continuous shoe borein alignment with said housing bore for receiving a shoe holding bolttherethrough.
 6. The trench lining assembly of claim 5, wherein saidhousing is welded to the lining plate.
 7. The trench lining assembly ofclaim 5, wherein said housing further includes an extended bracket on atleast one of said housing collars and extending essentially paralleltherewith, said extended bracket projecting beyond the exterior surfaceof the lining plate.
 8. The trench lining assembly of claim 7, whereinsaid extended bracket extends partially or completely over the adjoininghollow profile element transversely to its longitudinal extent.
 9. Thetrench lining assembly of claim 7, wherein said housing collars includewalls and said extended bracket forms an extension of one wall of one ofsaid housing collars.
 10. The trench lining assembly of claim 7, whereinsaid extended bracket defines a connecting means, said bracket includingat least one bore.
 11. The trench lining assembly of claim 10, whereinsaid connecting means includes a bolt inserted between two adjoiningextended brackets for attaching a pulling means.
 12. The shoe supportand housing assembly of claim 1, wherein said shoe support housingincludes a housing bottom and housing walls extending from the housingbottom to the longitudinal end of the housing, said housing walls beingpositioned to lie obliquely to the adjoining exterior surface of thelining plate whereby said housing is conically opened toward theexterior surface of the lining plate.
 13. The trench lining assembly ofclaim 6, wherein said assembly further includes an intermediate elementadjacent to the lining plate and said housing is connected to the liningplate via the intermediate element.
 14. The trench lining assembly ofclaim 6, wherein said housing further includes an extended bracket on atleast one of said housing collars and extending essentially paralleltherewith, said extended bracket projecting beyond the exterior surfaceof the lining plate.
 15. The trench lining assembly of claim 7, whereinsaid extended bracket extends over the adjoining hollow profile elementand is welded to said adjoining hollow profile element.
 16. The trenchlining assembly of claim 8, wherein said housing collars include wallsand said extended bracket forms an extension of a wall of one of saidhousing collars.
 17. The trench lining assembly of claim 10, whereinsaid extended bracket includes an adjacent or a raised plate includingsaid bore.
 18. The shoe support and housing assembly of claim 2, whereinsaid housing further includes an extended bracket on at least one ofsaid housing collars and extending essentially parallel therewith, saidextended bracket projecting beyond the exterior surface of the liningplate.
 19. The shoe support and housing assembly of claim 18, whereinsaid housing collars include walls and said extended bracket forms anextension of one wall of one of said housing collars.
 20. The shoesupport and housing assembly of claim 18, wherein said extended bracketdefines a connecting means, said bracket including at least one bore.21. The shoe support and housing assembly of claim 20, wherein saidextended bracket further includes a bolt inserted between two adjoiningextended brackets for attaching a pulling means.
 22. A shoe support andhousing assembly for use in a trench lining plate for supporting one endof a brace which projects outward from the surface of the plate, saidassembly comprising:a shoe support housing in the trench lining plate,said housing including longitudinal ends having a housing collarprojecting outward at both ends; a housing bore in said housing collarextending vertically with respect to the longitudinal direction at thelongitudinal ends of the housing and being positioned a predetermineddistance from the brace; a support shoe in the housing, said supportshoe having a shoe collar corresponding to the housing collar and areceptacle for receiving the end of the brace; and a shoe bore in saidsupport shoe in alignment with said housing bore for the insertion of ashoe holding bolt for fastening said housing collar and said shoe collartogether for securing said shoe support to said shoe support housing.23. The shoe support and housing assembly of claim 22, wherein saidsupport shoe further includes a means for resiliently fastening the endof the brace therein, said means comprising:a support plate connected toand supporting the receptacle; a bearing connected to and supporting thesupport plate; a pair of springs adjacent to the bearing for supportingthe support plate; and wherein the receptacle is seated resilientlyinside the support shoe.